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http://hdl.handle.net/1942/3035
Title: | Thermal treatment of a Y-123 precursor prepared using the hydroxide co-precipitation method | Authors: | SCHILDERMANS, Inge KNAEPEN, Els NOUWEN, Ria VAN BAEL, Marlies VANHOYLAND, Geert MULLENS, Jules YPERMAN, Jan FRANCO, Dirk VAN POUCKE, Lucien |
Issue Date: | 1999 | Publisher: | ELSEVIER SCI LTD | Source: | INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 1(5-6). p. 351-355 | Abstract: | A Y-123 precursor has been obtained using the hydroxide co-precipitation method. The influences of the calcination time and temperature (with and without sintering and annealing) on the formation of the superconducting phase, YBa2Cu3O7-delta, are examined using XRD and T-c measurements. A comparison between the co-precipitated hydroxide precursor and the conventional dry precursor, obtained by mixing oxides acid carbonates, is made. It shows that thermal treatment of the hydroxide precursor at 750 degrees C already gives a superconductor, while the oxide-carbonate precursor is only superconducting after thermal treatment at 850 degrees C. (C) 1999 Elsevier Science Ltd. All rights reserved. | Notes: | Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium.Van Poucke, LC, Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium. | Keywords: | superconductors; chemical syntheses; thermogravimetric analysis (TGA); X-ray diffraction; superconductivity | Document URI: | http://hdl.handle.net/1942/3035 | DOI: | 10.1016/S1466-6049(99)00050-1 | ISI #: | 000086132000008 | Type: | Journal Contribution | Validations: | ecoom 2001 |
Appears in Collections: | Research publications |
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